Watertown weather in March: Watertown, South Dakota: normal highs, lows, rain and records for March
Watertown in March has a normal high of 39°F and a normal low of 20°F, a daily mean of 29°F, rising from 31°F on the 1st to 46°F by the 31st. Measurable precipitation falls on 7 days in a normal March, 1.00 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 4°C and low of −7°C, 25 mm of precipitation and 14 cm of snow in March.
- NOAA stationWatertown Regional Airport
- Station IDUSW00014946
- Location44.90°N 97.15°W
- Elevation1,748 ft (533 m)
- Population23,492
- Jan 21° 3°
- Feb 26° 7°
- Mar 39° 20°
- Apr 54° 32°
- May 67° 45°
- Jun 77° 55°
- Jul 82° 60°
- Aug 80° 58°
- Sep 72° 49°
- Oct 56° 35°
- Nov 40° 21°
- Dec 26° 9°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Watertown in March?
The normal high is 39°F and the normal low 20°F, for a daily mean of 29.1°F. March is 12.8°F warmer than February and 13.7°F cooler than April. March is the 9th warmest month of the year in Watertown and the 8th wettest. Across the month the normal high rises 15°F, from 31°F on March 1 to 46°F on March 31. From one year to the next March's mean temperature typically moves about 6.0°F either way (NOAA's standard deviation), so roughly two Marchs in three average between 23°F and 35°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 25%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| March 1 | 31°F | 13°F | 21% | 8% |
| March 8 | 34°F | 16°F | 22% | 9% |
| March 15 | 38°F | 19°F | 22% | 9% |
| March 22 | 42°F | 22°F | 23% | 10% |
| March 31 | 46°F | 26°F | 25% | 12% |
Every day of March: normal high, low and chance of precipitation (warmest afternoon March 31, coldest night March 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| March 1 | 31°F | 13°F | 21% | 8% | 11 h 10 min |
| March 2 | 32°F | 13°F | 21% | 8% | 11 h 10 min |
| March 3 | 32°F | 14°F | 21% | 8% | 11 h 10 min |
| March 4 | 33°F | 14°F | 21% | 8% | 11 h 20 min |
| March 5 | 33°F | 15°F | 21% | 8% | 11 h 20 min |
| March 6 | 33°F | 15°F | 22% | 9% | 11 h 20 min |
| March 7 | 34°F | 16°F | 22% | 9% | 11 h 20 min |
| March 8 | 34°F | 16°F | 22% | 9% | 11 h 30 min |
| March 9 | 35°F | 17°F | 22% | 9% | 11 h 30 min |
| March 10 | 35°F | 17°F | 22% | 9% | 11 h 30 min |
| March 11 | 36°F | 18°F | 22% | 9% | 11 h 40 min |
| March 12 | 37°F | 18°F | 22% | 9% | 11 h 40 min |
| March 13 | 37°F | 19°F | 22% | 9% | 11 h 40 min |
| March 14 | 38°F | 19°F | 22% | 9% | 11 h 50 min |
| March 15 | 38°F | 19°F | 22% | 9% | 11 h 50 min |
| March 16 | 39°F | 20°F | 22% | 9% | 11 h 50 min |
| March 17 | 39°F | 20°F | 22% | 9% | 12 h |
| March 18 | 40°F | 21°F | 22% | 10% | 12 h |
| March 19 | 40°F | 21°F | 22% | 10% | 12 h |
| March 20 | 41°F | 22°F | 23% | 10% | 12 h 10 min |
| March 21 | 41°F | 22°F | 23% | 10% | 12 h 10 min |
| March 22 | 42°F | 22°F | 23% | 10% | 12 h 10 min |
| March 23 | 42°F | 23°F | 23% | 11% | 12 h 20 min |
| March 24 | 43°F | 23°F | 23% | 11% | 12 h 20 min |
| March 25 | 43°F | 24°F | 24% | 11% | 12 h 20 min |
| March 26 | 44°F | 24°F | 24% | 11% | 12 h 20 min |
| March 27 | 44°F | 24°F | 24% | 11% | 12 h 30 min |
| March 28 | 45°F | 25°F | 24% | 11% | 12 h 30 min |
| March 29 | 45°F | 25°F | 24% | 12% | 12 h 30 min |
| March 30 | 46°F | 25°F | 25% | 12% | 12 h 40 min |
| March 31 | 46°F | 26°F | 25% | 12% | 12 h 40 min |
- Normal high
- 39°FMarch average
- Normal low
- 20°FMarch average
- Precipitation
- 1.00 inmonth total
- Days with precipitation
- 70.01 inch or more
- Snowfall
- 5.4 inmonth total
- Nights at 32°F or colder
- 27
- Daylight
- 11 h 10 min to 12 h 40 minMarch 1 to March 31
- Days at 70°F or more
- 1
- Sunshine
- 71%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014946; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Watertown in March?
On a given March day the chance of 0.01 inch or more is 22% on average, highest around March 31 (25%). In all, 1.00 in falls on 7 days of a normal March.
In a normal March in Watertown, 27 nights fall to freezing, 10 days stay below freezing all day and snowfall averages 5.4 inches.
Snow falls on 4 days in a normal March, and an inch or more covers the ground on 15 days.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014946.
How humid and windy is Watertown in March?
At 3 p.m. the normal temperature is 45°F with 51% relative humidity and a dew point of 28°F; at 6 a.m. it is 29°F with 83% humidity. The wind averages 12.3 mph, most often from the north-northwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 29°F | 25°F | 83% | 10.6 mph | 62% |
| 9 a.m. | 35°F | 27°F | 72% | 13.4 mph | 59% |
| noon | 42°F | 28°F | 57% | 15.0 mph | 58% |
| 3 p.m. | 45°F | 28°F | 51% | 14.9 mph | 55% |
| 6 p.m. | 42°F | 28°F | 57% | 13.0 mph | 54% |
| 9 p.m. | 36°F | 28°F | 72% | 10.7 mph | 61% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00014946. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for March in Watertown?
The warmest March temperature on this station's record (since 1893) is 82°F, on March 23, 1910; the coldest is −27°F, on March 14, 1897. The wettest March brought 3.94 in (1977); the snowiest, 22.0 inches (1975).
The March mean against the 1991-2020 normal of 29.1°F: 2021 36.7°F (+7.6), 2022 29.1°F (at normal), 2023 19.5°F (−9.6), 2024 32.2°F (+3.1), 2025 36.2°F (+7.1), 2026 34.4°F (+5.3). 4 of 6 ran warmer than normal.
| March | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 36.7°F | +7.6°F | 1.39 in |
| 2022 | 29.1°F | at normal | 0.26 in |
| 2023 | 19.5°F | −9.6°F | 1.36 in |
| 2024 | 32.2°F | +3.1°F | 0.39 in |
| 2025 | 36.2°F | +7.1°F | 1.42 in |
| 2026 | 34.4°F | +5.3°F | 0.40 in |
Source: records: ACIS, station USW00014946; recent months: ACIS, station USW00014946. Records and recent months use complete months only.
How does March in Watertown compare across South Dakota?
Across the 100 places PlainClimate covers in South Dakota, March normal highs run from 37°F in Astoria to 54°F in Hot Springs; Watertown's is 39°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.